let's talk for a brief moment on joe biden. he's playing an increasingly more visible role. what does that say to you long term? >> it's very hard for me to imagine joe biden as a 2016 candidate. i find it hard to imagine. the country will be ready for something new. >> if you turn your head side ways and close one eye, it kind of looks like the seal for the vice president that says president of the united states. everybody in washington but certainly every senator and vice presidencies himself as vice president. this vice president, the task for in the middle class, implementation of the recovery act and now within the last few weeks the deal on the fiscal cliff and gun violence, gun safety, this president has entrusted him with enormous responsibility and i think frankly the vice president has proven himself. >> i think when you do those high profile, it's like working at a nuclear plant that measures how much radiation you've absorbed. when you've done enough of that task force, you're radioactive, too. >> the president has really relied on his vice president. they work v